CABAC BIMET SECTOR LINK 120/4/120 BLKS120/4/120 x 1/EACH

Description

Reliable Bi-Metal Sector Link for Aluminium to Copper Connections

The CABAC Bi-Metal Sector Link 120/4/120 (BLKS120/4/120) is designed to provide a secure and efficient transition between solid or sector aluminium cable and circular copper cable. This bi-metal connector combines an aluminium sleeve with a copper palm to deliver strong electrical performance while minimising resistance across the joint.

Using a friction-welded joint, the link creates a durable bond between the aluminium and copper components, ensuring consistent conductivity and mechanical strength in demanding electrical installations. The fully annealed construction provides improved ductility and workability, making it suitable for installations where reliable termination and long-term stability are essential.

For electricians handling mixed-metal cable systems, this sector link offers a dependable solution that simplifies cable transitions while maintaining electrical efficiency.

Built for Compliance and Long-Term Electrical Reliability

When working on commercial, industrial, or infrastructure projects, compliance and reliability are critical. The CABAC bi-metal sector link is manufactured to meet recognised international standards including AS4325 Part 1 (Australia), IEC, DIN/VDE, JIS, and BS, supporting installations that require verified product quality and electrical safety.

The aluminium sleeve (99.6% conductivity aluminium) and copper palm (99.95% copper) are engineered to maintain strong electrical performance, helping reduce potential issues caused by dissimilar metal connections. With a tensile strength of 110 MPa and a ductile rating of 28%, the connector maintains structural integrity even under demanding site conditions. Designed to operate within a wide temperature range of -40°C to 125°C, this link is suitable for a variety of environments including outdoor installations, industrial switchboards, and distribution systems where thermal stability matters.

Practical Trade Solution for Fast, Efficient Installations

For contractors managing tight schedules and multiple jobs, dependable components make all the difference. The CABAC BLKS120/4/120 sector link provides a straightforward solution for joining aluminium and copper conductors, helping electricians complete terminations quickly and confidently. By using a dedicated bi-metal link instead of improvised connections, installers can reduce the risk of corrosion, overheating, and premature joint failure—common issues when joining dissimilar metals. This means fewer callbacks, improved system reliability, and smoother project delivery.

Available through iSupply Electrical’s extensive trade-grade range, this connector is ideal for electricians who need reliable products, compliant materials, and fast procurement to keep projects moving.

Key Specs

• Core: 4

• Aluminium sleeve: 99.6% aluminium

• Copper palm: 99.95% copper

• Tensile strength: 110 MPa

• Ductile rating: 28%

• Final metal state: Fully annealed including joint

• Joining method: Friction welding (IEC standard)

• Operating temperature: -40°C to 125°C

• Aluminium resistivity: 2.6 micro-ohm cm (max.)

• Copper resistivity: 1.738 micro-ohm cm

• Aluminium conductivity: 61.8% IACS (min.)

• Copper conductivity: 99.7% IACS

• Standards: AS4325 Part 1, IEC, DIN/VDE, JIS, BS

Ideal For

• Licensed electricians installing aluminium to copper cable connections

• Commercial and industrial switchboard installations

• Distribution and power infrastructure projects

• Maintenance teams upgrading existing cable systems

• Electrical contractors working with sector aluminium conductors